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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef NUPLAYER_RENDERER_H_
#define NUPLAYER_RENDERER_H_
#include "NuPlayer.h"
namespace android {
struct ABuffer;
struct NuPlayer::Renderer : public AHandler {
enum Flags {
FLAG_REAL_TIME = 1,
FLAG_OFFLOAD_AUDIO = 2,
};
Renderer(const sp<MediaPlayerBase::AudioSink> &sink,
const sp<AMessage> ¬ify,
uint32_t flags = 0);
static size_t AudioSinkCallback(
MediaPlayerBase::AudioSink *audioSink,
void *data, size_t size, void *me,
MediaPlayerBase::AudioSink::cb_event_t event);
void queueBuffer(
bool audio,
const sp<ABuffer> &buffer,
const sp<AMessage> ¬ifyConsumed);
void queueEOS(bool audio, status_t finalResult);
void flush(bool audio);
void signalTimeDiscontinuity();
void signalAudioSinkChanged();
void signalDisableOffloadAudio();
void pause();
void resume();
enum {
kWhatEOS = 'eos ',
kWhatFlushComplete = 'fluC',
kWhatPosition = 'posi',
kWhatVideoRenderingStart = 'vdrd',
kWhatMediaRenderingStart = 'mdrd',
kWhatAudioOffloadTearDown = 'aOTD',
};
protected:
virtual ~Renderer();
virtual void onMessageReceived(const sp<AMessage> &msg);
private:
enum {
kWhatDrainAudioQueue = 'draA',
kWhatDrainVideoQueue = 'draV',
kWhatQueueBuffer = 'queB',
kWhatQueueEOS = 'qEOS',
kWhatFlush = 'flus',
kWhatAudioSinkChanged = 'auSC',
kWhatPause = 'paus',
kWhatResume = 'resm',
kWhatStopAudioSink = 'stpA',
kWhatDisableOffloadAudio = 'noOA',
};
struct QueueEntry {
sp<ABuffer> mBuffer;
sp<AMessage> mNotifyConsumed;
size_t mOffset;
status_t mFinalResult;
};
static const int64_t kMinPositionUpdateDelayUs;
sp<MediaPlayerBase::AudioSink> mAudioSink;
sp<AMessage> mNotify;
Mutex mLock;
uint32_t mFlags;
List<QueueEntry> mAudioQueue;
List<QueueEntry> mVideoQueue;
uint32_t mNumFramesWritten;
bool mDrainAudioQueuePending;
bool mDrainVideoQueuePending;
int32_t mAudioQueueGeneration;
int32_t mVideoQueueGeneration;
int64_t mFirstAudioTimeUs;
int64_t mAnchorTimeMediaUs;
int64_t mAnchorTimeRealUs;
Mutex mFlushLock; // protects the following 2 member vars.
bool mFlushingAudio;
bool mFlushingVideo;
bool mHasAudio;
bool mHasVideo;
bool mSyncQueues;
bool mPaused;
bool mVideoSampleReceived;
bool mVideoRenderingStarted;
int32_t mVideoRenderingStartGeneration;
int32_t mAudioRenderingStartGeneration;
int64_t mLastPositionUpdateUs;
int64_t mVideoLateByUs;
size_t fillAudioBuffer(void *buffer, size_t size);
bool onDrainAudioQueue();
int64_t getPendingAudioPlayoutDurationUs(int64_t nowUs);
int64_t getPlayedOutAudioDurationUs(int64_t nowUs);
void postDrainAudioQueue_l(int64_t delayUs = 0);
void onDrainVideoQueue();
void postDrainVideoQueue();
void prepareForMediaRenderingStart();
void notifyIfMediaRenderingStarted();
void onQueueBuffer(const sp<AMessage> &msg);
void onQueueEOS(const sp<AMessage> &msg);
void onFlush(const sp<AMessage> &msg);
void onAudioSinkChanged();
void onDisableOffloadAudio();
void onPause();
void onResume();
void onAudioOffloadTearDown();
void notifyEOS(bool audio, status_t finalResult, int64_t delayUs = 0);
void notifyFlushComplete(bool audio);
void notifyPosition();
void notifyVideoLateBy(int64_t lateByUs);
void notifyVideoRenderingStart();
void notifyAudioOffloadTearDown();
void flushQueue(List<QueueEntry> *queue);
bool dropBufferWhileFlushing(bool audio, const sp<AMessage> &msg);
void syncQueuesDone_l();
bool offloadingAudio() const { return (mFlags & FLAG_OFFLOAD_AUDIO) != 0; }
DISALLOW_EVIL_CONSTRUCTORS(Renderer);
};
} // namespace android
#endif // NUPLAYER_RENDERER_H_
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